12631223631 has 8 divisors (see below), whose sum is σ = 18137141680. Its totient is φ = 7773060672.

The previous prime is 12631223587. The next prime is 12631223659. The reversal of 12631223631 is 13632213621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12631223631 - 2²⁷ = 12497005903 is a prime.

It is a super-2 number, since 2×12631223631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12631203631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161938726 + ... + 161938803.

It is an arithmetic number, because the mean of its divisors is an integer number (2267142710).

Almost surely, 2^12631223631 is an apocalyptic number.

12631223631 is a deficient number, since it is larger than the sum of its proper divisors (5505918049).

12631223631 is a wasteful number, since it uses less digits than its factorization.

12631223631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323877545.

The product of its digits is 7776, while the sum is 30.

The spelling of 12631223631 in words is "twelve billion, six hundred thirty-one million, two hundred twenty-three thousand, six hundred thirty-one".